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Finding the Fourth Proportional to 291,116.16, 436,654.56 and 113,590.08

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Solution

The fourth proportional to 291,116.16, 436,654.56 and 113,590.08 is: 170,377.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,116.16 : 436,654.56 = 113,590.08 : x
  2. Step 2: Convert to fraction form
    291,116.16/436,654.56 = 113,590.08/x
  3. Step 3: Cross multiply
    291,116.16x = 436,654.56 × 113,590.08
  4. Step 4: Simplify right side
    291,116.16x = 49,599,626,402.76
  5. Step 5: Solve for x
    x = 49,599,626,402.76/291,116.16
  6. Step 6: Final answer
    x = 170,377.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.